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Coix seed improves growth performance and productivity in post-weaning pigs by reducing gut pH and modulating gut microbiota

文献类型： 外文期刊

作者： Li, Zhaolong 1 ; Lin, Zhongning 3 ; Lu, Zheng 3 ; Feng, Zhihua 1 ; Chen, Qi 1 ; Deng, Sufang 3 ; Li, Zhenwu 3 ; Yan, Youq 1 ;

作者机构： 1.Fujian Normal Univ, Biomed Res Ctr South China, Fujian Key Lab Innate Immune Biol, Qishan Campus, Fuzhou 350117, Fujian, Peoples R China

2.Fujian Acad Agr Sci, Inst Anim Husb & Vet Med, Fuzhou 350013, Fujian, Peoples R China

3.Fujian Acad Agr Sci, Agr Ecol Inst, Fuzhou 350013, Fujian, Peoples R China

4.Fujian Engn & Technol Res Ctr Hilly Prataculture, Fuzhou 350013, Fujian, Peoples R China

关键词： Coix seed; Piglets; Gut microbiota; Villi; pH

期刊名称：AMB EXPRESS （ 影响因子：3.298； 五年影响因子：3.427 ）

ISSN： 2191-0855

年卷期： 2019 年 9 卷

页码：

收录情况： SCI

摘要： Coix seed has traditionally been used in traditional Chinese medicine to fortify the spleen and inhibit dampness, and has shown anticancer effects in humans. However, it is not known whether coix seed improves post-weaning growth performance and productivity, and the mechanism of interaction between coix seed and gut microbiota remains unknown. In this study, we established four groups: (i) control, (ii) antibiotic-fed, (iii) coix seed powder-fed, and (iv) coix seed extract-fed. The feeding experiment was conducted for 4weeks. Coix seed extract significantly increased average weight gain and reduced the feed/meat ratio in weaned pigs, in addition to reducing the pH of their gastric juice. Further assays demonstrated that coix seed promotes an increase in the density and length of the gastrointestinal villi. Next, 16s sequencing of gut microbiota showed that coix seed significantly increased the abundance of phylum Bacteroidetes and genus Lactobacillus (p<0.05) and reduced the abundance of phylum Prevotella (p<0.05) in the gut microbiota. In contrast, the abundance of phylum Bacteroidetes and genus Lactobacillus decreased in the control group and antibiotic group, whereas the abundance of phylum Prevotella increased. Our findings indicate that coix seedimproves growth performance and productivity in post-weaning pigs by reducing the pH value of gastric juice, increasing the density and length of gastrointestinal villi, and modulating gut microbiota. Thus, coix seed has good potential for use as a feed supplement in swine production.

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